OS X one liners I have created or collected. All have been tested on Mavericks.
Kill Microsoft Excel
killall Microsoft\ Excel
This would kill the Microsoft Excel process, but what if we wanted to kill all Microsoft processes?
kill $(ps axc | grep -i Microsoft | awk '{print $1} ')
Kill all applications running from /Users folder.
ps -ef | grep /Users | awk '{print $2}' | xargs kill
Reset Printing System
lpstat -p | cut -d' ' -f2 | xargs -I{} lpadmin -x {}
Curl outside network information. Thanks to ifconfig.me
curl ifconfig.me/all
Outside IP address only
curl ifconfig.me
Display MAC Address of default interface
netstat -rn | awk '/default/ { print $NF }' | head -1 | xargs -I {} ifconfig {} | awk '/ether/ {print $2}'
List open files for a given process name
lsof -i -n -P | grep -e "$(ps aux | grep node | grep -v grep | awk -F' ' '{print $2}' | xargs | awk -F' ' '{str = $1; for(i = 2; i < NF; i++) {str = str "\\|" $i} print str}')"
Force delete of Google Chrome Google-related local storage
/bin/rm -f ~/Library/Application\ Support/Google/Chrome/Default/Local\ Storage/*google*
List OSX applications and versions
find /Applications -type d -maxdepth 1 -exec sh -c 'echo "{}"; (plutil -convert xml1 -o - "{}/Contents/Info.plist" | xpath /dev/stdin "concat(\"v\", /plist/dict/string[preceding-sibling::key[1]=\"CFBundleShortVersionString\"]/node())" 2>/dev/null)' \;
Flatten a Nested Directory & File Hierarchy
find TargetDirectory/ -mindepth 2 -type f -exec mv -i '{}' TargetDirectory/ ';'
Checking DNS records
dig walenoh.com +nostats +nocomments +nocmd
Serve current directory via Http on port 8000
python -m SimpleHTTPServer
Sources